Specific latent heat

Question 1

What happens when a substance is melting or boiling

-You are putting in … so you are … the internal energy
-the energy is used for … bonds rather than raising the …

Answer 1

-You are putting in energy so you are increasing the internal energy
-the energy is used for breaking bonds rather than raising the temperature

Question 2

What happens when a substance is condensing or freezing

-bonds are … between particles which releases energy so the … energy …
-the t… does not go down until the substance has fully … into a liquid or … into a solid

Answer 2

-bonds are forming between particles which releases energy so the internal energy decreases
-the temperature does not go down until the substance has fully condensed into a liquid or frozen into a solid

Question 3

What is the energy needed to change the state of a substance called

Answer 3

Latent heat

Question 4

Latent heat

Answer 4

The energy needed to change the state of a substance

Question 5

What is specific latent heat

The amount of … needed to change …kg of it from one s… to another without changing its t…

Answer 5

The amount of energy needed to change 1kg of it from one state to another without changing its temperature

Question 6

What is the specific latent heat called for changing between a solid and a liquid

Answer 6

Specific latent heat of fusion

Question 7

What is the specific latent heat for changing between a liquid and a gas

Answer 7

Specific latent heat of vaporisation

Question 8

Equation to find out specific latent heat

Answer 8

E=mL

Question 9

Unit for specific latent heat

Answer 9

J/Kg